Home / 48,613.50-72,920.25-15,781.50

Finding the Fourth Proportional to 48,613.50, 72,920.25 and 15,781.50

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Solution

The fourth proportional to 48,613.50, 72,920.25 and 15,781.50 is: 23,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,613.50 : 72,920.25 = 15,781.50 : x
  2. Step 2: Convert to fraction form
    48,613.50/72,920.25 = 15,781.50/x
  3. Step 3: Cross multiply
    48,613.50x = 72,920.25 × 15,781.50
  4. Step 4: Simplify right side
    48,613.50x = 1,150,790,925.38
  5. Step 5: Solve for x
    x = 1,150,790,925.38/48,613.50
  6. Step 6: Final answer
    x = 23,672.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.